there are three types of switching techniques
1) circuit switcching
2) Packet switching
3)Message switching
Packet-switching
circuit switching
In a network switching subsystem, a mobile switching center is the centerpiece. The function of the mobile switching center is to perform the telephony switching functions and serves as a network node.
packet switching circuit switching message switching
The difference among different types of switching devices is in the features and the functions that they have. The two main types are packet switching and circuit switching devices.
There are three type of switching system such as circuit switching ,packet switching , massage switching.
Ethernet
Packet-switching
it is very cheap
switching complexity
PSTN
carrying user voice and data circuit switching packet switching